Real Number System Quiz Quiz Description: Choose the best answer for each question. Be sure to read each question very carefully. Before submitting your answers, type your first and last name.

1: Which number is not rational?
a) 4
b) 0.3
c) 6.171717...
d) 2/3
e) √3

2: Which number is rational, an integer, a whole number, and a natural number?
a) 0.17
b) 36/12
c) 0
d) 3/4
e) -2

3: When is a fraction irrational?
a) When it is a mixed number
b) When it is improper
c) When it is negative
d) Never
e) Always

4: The number √16 is which of the following?
a) Rational
b) Integer
c) Whole
d) Natural
e) All of the above

5: Some fractions can be reduced to integers
a) True
b) False

6: The number 1.34343434… is which of the following?
a) Irrational
b) Rational
c) Rational and Integer
d) Rational, Integer, and Whole
e) Rational, Integer, Whole, and Natural

7: π (pi) is which of the following
a) Irrational
b) Irrational and Integer
c) Rational
d) Rational and Integer
e) Rational and Irrational

8: What number is the only whole number that is not a natural number
a) -1
b) 1
c) 0
d) 1/2
e) √2

9: Which number is a non-terminating/non-repeating decimal?
a) √144
b) 1.626262...
c) 9.089
d) 3/2
e) √5

10: Which number is a repeating decimal?
a) √144
b) 1.626262...
c) 9.089
d) 3/2
e) √5

11: Which number is a terminating decimal?
a) -1/6
b) 1.626262...
c) 9.089
d) 1/3
e) √5

12: The symbol used to represent the set of integers is _____.
a) R
b) W
c) Q
d) Z
e) I

13: Which number is not an integer?
a) √81
b) 4.3333...
c) -2
d) 0
e) 7/1

14: Which number is an integer?
a) √4
b) 9.5
c) 0
d) 3/2
e) Both a and c

15: Which number is not whole?
a) 0
b) √49
c) -1
d) 121/11
e) 36.0

16: Another name for natural numbers is counting numbers.
a) True
b) False

17: Which number is rational?
a) 3/2
b) √2
c) π
d) -√13
e) 1.232332333...

18: What is the smallest natural number
a) -1
b) 1
c) 0
d) 0.5
e) -0.5

19: When is a number both rational and irrational?
a) when it is a mixed number
b) when it is a decimal
c) when it is negative
d) when it is an improper fraction
e) never

20: The symbol used to represent the set of rational numbers is _____.
a) R
b) W
c) Q
d) Z
e) I

21: The number -4 belongs to which set(s)
a) Rational Numbers
b) Integer
c) Whole Numbers
d) Rational and Integer
e) Rational, Integer, and Whole Numbers

22: ________ can be expressed as fractions, decimals that terminate or repeat, or integers.
a) Irrational Numbers
b) Rational Numbers
c) Integers
d) Whole Numbers
e) Natural Numbers

23: The number 1.343443444… is which of the following
a) Irrational
b) Rational
c) Integer
d) Whole
e) Natural

24: What is the smallest whole number?
a) -1
b) 1
c) 0
d) 0.5
e) -0.5

25: All integers are rational numbers.
a) True
b) False